MasterActor详解

MasterActor作用：
1 ， 由ActorContext 实例化MapActor、ReduceActor、AggregateActor
2，接收消息，以及消息转发给各个Actor

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1. /**
   
2.  * 管理各个Actor，以及作为消息的入口、进行消息的转发
   
3.  *
   
4.  */
   
5. public class MasterActor extends UntypedActor {
6.     //由ActorContext创建Actor
   
7.     private ActorRef aggregateActor = getContext().actorOf(new Props(AggregateActor.class),"aggregate");
   
8.     private ActorRef reduceActor = getContext().actorOf(new Props(new UntypedActorFactory(){public Actor create() {return new ReduceActor(aggregateActor);}}),"reduce");
   
9.     private ActorRef mapActor = getContext().actorOf(new Props(new UntypedActorFactory(){public Actor create() {return new MapActor(reduceActor);}}),"map");
   
10. 
    
11.     @Override
    
12.     public void onReceive(Object message) throws Exception {
    
13.         if(message instanceof String){
    
14.             mapActor.tell(message);//fire-and-forget.非阻塞
    
15.         }else if(message instanceof Result){
    
16.             aggregateActor.tell(message);//让aggregateActor返回最终结果
    
17.         }else{
    
18.             unhandled(message);
    
19.         }
    
20.     }
    
21. }

来自 “ ITPUB博客 ” ，链接：http://blog.itpub.net/28912557/viewspace-2089928/，如需转载，请注明出处，否则将追究法律责任。

转载于:http://blog.itpub.net/28912557/viewspace-2089928/